the ir source is too big
don't know where to click to put yellow circle. the circle's too small. usually just put it in middle, but this is an irregular shape. should be able to adjust circle size.
by DocR scientist
Yes, that's the best bet. This is a blend. If you click on SDSS, you'll see a much higher resolution optical image, showing that there's several galaxies in the center right near each other. So you did the right thing, and no, we don't want to adjust circle size because it's an instrumental problem, usually (the blending), rather than a big object. There will be some big objects, but they won't be round.